Strip-map holder



Nov. 20, 1928.

F. A. PULLEN STRIP MAPfHOLDER Filed Oct. 18, 1927 2 Sheets-Sheet v l Nov. 2o, 192s. 1,692,348

F. A. PULLAEN STRIP MAP HOLDER Filed not. 18, 1927 2 Sheets-sheet 2 F PHZZM @www Patented Nov. 20, 1928..

"UNITED ASTATES ,PATENT Gmc-E1:

FREDA. PULLEN, or LA FONTAINE, INDIANA. y

lsaisir-raar HOLDER.

Application med octoberla, 1927." serial N64 226,943."

Spool at the same relativespeed as that of the vehicle. 1 f

Another object is to provide means enabling v the frame upon which the map Carrying spools are mounted to be removedl from the holder whereby to permit the changing of the mapl according to the particular location over which thevehicle isftraveiingl i v' Afurther object is to provide means for moving the drive means for the spool into or out of operative position with respect to the speedometer shaft and including aconstruction wherebythe spools may be vrotatedfina fori'vard or reverse direction.

A still` further object i'sto provide a device of this character of simple and practical construction, neat and attractive -in appearance, efficient and reliable in i perfo1man'ce,-rela tively inexpensive tov manufacture-and install and otherwise well adaptedfor the purpose for which the same is intended. f Y Other robjects and Vadvantages residein the special construction and combination of the various elements comprising t-he invention, reference being had to the accompanying drawings, wherein Figure 1 is a top plan view.

Figure 2 is a side elevational View.

Figure 3 is a longitudinal sectional view taken along a line 3 3 of Figure 1, and,

Figure 4 is a transverse sectional view taken along a line 4-4 of Figure 1.

Referring to the drawings in detail, the invent-ion comprises a stationary frame indicated generally at 5, which may be secured to any suitable part of the vehicle, as for instance upon the instrument board of an auto-y mobile or `'the control board of an aeroplane and carries a shaft 6 arranged in constant operative connection with the drive shaft of the speedometer of the vehicle, said shaft having a worm gear 7 mounted thereon engaged with a worm wheel 8 mounted intermediate the ends of a countershaft 9 extending transversely of the frame and journaled therein with a pair of worm gears l0 mounted yon* the opposite ends thereof.

A pair of guide arms 11 extend from the frame 5 in spaced 'parallelrelation andare slidably carried in openings formed ina movable carriage-12 having a pair of shafts 13 rotatably'j'ournaled in theopposite ends thereof and arranged for movementwith the car riag'e, onev endfof each4 of said shaftshaving aD worin gear 121 mounted thereon, the respective wormgearsbeing adapted for engagement with the worm gearsv l()V carriedatthe opposite ends of the shaft 9. 'As'will be noted from an inspection'. of Figure 1 ofthe draw- "i ing, thekmovement the carriage in one direction toward the O'ears 10 will operate to engage one of 'the worm wheels 14 with its associated gear,`f'while 'the` opposite worm wheel and gear are disposed in inoperative position, and the movement of the'carriage in an opposite' direction will operate to reverse the engagement ofthe respective'gears.r f

Intermediate ythe guides `1l and extending parallel therewith is an arm 15', secured atfone end tothe frame 5'and'slidably carried within an opening formed in the carriage. `Upon the upper facel'of the carriage is arranged an upwardly extendingpin 16 having its lower end insertcdthrough an opening formed 'in the'carriage andarranged to be inserted :in

any one of a set of openings 17 formed in arm' 15 upon the movement of the car riage in a properjpositionto aline the respective openings; A housing 18 isfarranged on the upper side of the carriage through which the pin extends and within which is disposed a coil spring 19 normally forcing the pin in engaged position with respect to said opening. The 'openings 17 comprise three in num? ber, the movement of the carriage enabling the pin to register with either of said'end openings operating to bring one set of the gears 10 andlinto operative engagement,

the movement of the/carriage for registering the pin inthe opposite end opening resulting in the engagement of the gears at the opposite side ofthe carriage and the insertion of the pin in the central opening operating to maintain the carriage in a. position with the gears in inoperative position. Y

The ends of the shafts 13 opposite fromthe gears 14 are formed into tapered ends 2() having longitudinally extending serrations formed thereon and adapted to be inserted in v i recesses formedY in one end of map Vcarrying spools 21, the ends of said spools engaged by the shaft 13 being journaled for rotation at opposite sides of a framel 22,' the opposite ends of the spools being rotatably supported with the opposite ends of said spring abutting shoulders 27 formed in the opening 24.

y' The ends of the plungers remote from the pins 23 are provided with operating knobs 2S. The knobs may be utilized manually to rotate the respective spools when desired, Whenever the gears 14 of the carriage shaft aredisengaged from the gears 10. y Y

The'underside of the carriage 12 is provided With atenon29 arranged intermediate the sides thereof with itsouter end-fitted into aV recess 30 formed in the frame 22. The tenon and underside of the frame22 are provided With alined openings 31 adapted to receive a pin 32 formed o n a spring latch 33, the pin being adapted to normally maintain y the tenon in inserted position Within the recess whereby to secure the carriage 12 and frame 22 in fixed position with respect to each other. It is apparent however, that upon the removal of the pin that the frame 22 may be detached fromthe carriage 12 for the purpose of changing' the map when desired. A cover 34 may be mounted above the map extended between thespools 21, the`oppoe site ends of the cover ybeing secured tothe frame'22. The cover 34 may be formed of glass or other transparent material thereby enabling the inspection of the map, which as indicated, is adapted to travely aboutthe spools beneath the same.

Either of the spools 21 may be removed from the frame V22 by releasing the pin 23 from the end thereof, which thereby enables the spool to be moved longitudinally and detached from the Vend 2() of the shaft 13.

Itis also apparent that either of the shafts 13 for rotating the respective spools may be selectively moved into or out of operative yposition with respect to the Worm gear 10 for In a strip map holder, a stationary frame,

a gearmounted thereon adapted foroperative connection with a speedometer drive shaft, a counter-shaft journaled on said frame, means operatively connecting the same With said gear,` gears mounted on each end of said counter-shaft, a carriage slidably arranged on said frame, a pair of shafts journaled for rotation in said carriage, means operativelyconnecting said shafts for opposite rotation With `saidcounter-shaft gears,

Vmanually operated means for lselectively moving said carriage shafts int-o and out of operative position, a map spool frame, means detachably connecting said frame With said carriage, a pair of spools mounted in said inap frame and arranged for rotation by said carriage shafts and means for manually operating said spools Avvhen the carriage shafts are disconnected from said speedometer ldrive shaft. l

f In testimony whereof I affix my signature.

FRED A. PULLEN, 

